Mix the corn syrup, peanut butter, and sugar together in a large pan over medium heat.
Heat and stir until the mixture is smooth.
Remove from the heat and add the crisp rice cereal. Mix until everything is well incorporated.
Press into an un-greased 9x9 pan.
Melt butterscotch chips and chocolate chips together and spread over the crispy rice and peanut butter mixture.
Let set for one hour before cutting.